A customer purchases $54 of groceries. The sales tax at the bottom of the receipt says she paid an additional $4.32 in sales tax. What was the percent sales tax on that purchase?

Question

Quizplus · Accepted Answer

We can use the percent formula to solve. The percent formula is below: ^part⁄_whole = ^%⁄₁₀₀ Based on the text, these are the values we will plug into the percent formula to solve: Whole: the original "whole" price of the groceries before the tax is applied was $54 Part: the value of the added sales tax $4.32 %: this is what we are looking for, so this is where we will put our variable (x). ^part⁄_whole = ^%⁄₁₀₀ ^4.32⁄₅₄ = ^x⁄₁₀₀ Cross multiply and solve for x: ^4.32⁄₅₄ = ^x⁄₁₀₀ 54 * x = 4.32 * 100 54x = 432 54x/54 = 432/54 x = 8 So, $4.32 is 8% of $54.

A Customer Purchases $54 of Groceries